/*!	 layerresetpose.cpp
**	 Template File
**
**	......... ... 2014 Ivan Mahonin
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifdef USING_PCH
#	include "pch.h"
#else
#ifdef HAVE_CONFIG_H
#	include <config.h>
#endif

#include <synfig/general.h>

#include "layerresetpose.h"
#include <synfigapp/canvasinterface.h>
#include <synfigapp/localization.h>

#include <synfig/valuenodes/valuenode_bone.h>
#include <synfig/valuenodes/valuenode_composite.h>

#endif

using namespace std;
using namespace etl;
using namespace synfig;
using namespace synfigapp;
using namespace Action;

ACTION_INIT(Action::LayerResetPose);
ACTION_SET_NAME(Action::LayerResetPose, "LayerResetPose");
ACTION_SET_LOCAL_NAME(Action::LayerResetPose, N_("Reset Pose"));
ACTION_SET_TASK(Action::LayerResetPose, "layer_reset_pose");
ACTION_SET_CATEGORY(Action::LayerResetPose, Action::CATEGORY_LAYER);
ACTION_SET_PRIORITY(Action::LayerResetPose, 0);
ACTION_SET_VERSION(Action::LayerResetPose, "0.0");
ACTION_SET_CVS_ID(Action::LayerResetPose, "$Id$");

Action::LayerResetPose::LayerResetPose():
    time(0)
{
}

Action::ParamVocab
Action::LayerResetPose::get_param_vocab()
{
    ParamVocab ret(Action::CanvasSpecific::get_param_vocab());

    ret.push_back(ParamDesc("layer", Param::TYPE_LAYER)
                  .set_local_name(_("Layer"))
                  .set_desc(_("Layer to reset"))
                  .set_supports_multiple()
                 );
    ret.push_back(ParamDesc("time", Param::TYPE_TIME)
                  .set_local_name(_("Time"))
                  .set_optional()
                 );

    return ret;
}

bool
Action::LayerResetPose::is_candidate(const ParamList &x)
{
    if (!candidate_check(get_param_vocab(), x)) {
        return false;
    }

    for (ParamList::const_iterator i = x.find("layer"); i != x.end() && i->first == "layer"; ++i)
        if (i->second.get_type() == Param::TYPE_LAYER
                && i->second.get_layer()->get_name() == "skeleton_deformation") {
            return true;
        }

    return false;
}

bool
Action::LayerResetPose::set_param(const synfig::String& name, const Action::Param &param)
{
    if (name == "layer"
            && param.get_type() == Param::TYPE_LAYER
            && param.get_layer()->get_name() == "skeleton_deformation") {
        layers.push_back(param.get_layer());
        return true;
    }

    if (name == "time" && param.get_type() == Param::TYPE_TIME) {
        time = param.get_time();
        return true;
    }

    return Action::CanvasSpecific::set_param(name, param);
}

bool
Action::LayerResetPose::is_ready()const
{
    if (layers.empty()) {
        return false;
    }

    return Action::CanvasSpecific::is_ready();
}

void
Action::LayerResetPose::prepare()
{
    clear();

    for (std::list<synfig::Layer::Handle>::const_iterator i = layers.begin(); i != layers.end(); ++i) {
        Layer::Handle layer(*i);
        Canvas::Handle subcanvas(layer->get_canvas());

        Layer::DynamicParamList::const_iterator j = layer->dynamic_param_list().find("bones");

        if (j == layer->dynamic_param_list().end()) {
            continue;
        }

        LinkableValueNode::Handle bones_node = LinkableValueNode::Handle::cast_dynamic(j->second);

        if (!bones_node) {
            continue;
        }

        for (int k = 0; k < bones_node->link_count(); ++k) {
            ValueNode_Composite::Handle pair_node =
                ValueNode_Composite::Handle::cast_dynamic(
                    bones_node->get_link(k));

            if (!pair_node) {
                continue;
            }

            ValueNode_Bone::Handle bone_node =
                ValueNode_Bone::Handle::cast_dynamic(
                    pair_node->get_link("first"));

            if (!bone_node) {
                continue;
            }

            Action::Handle action(Action::create("ValueDescResetPose"));
            action->set_param("canvas", get_canvas());
            action->set_param("canvas_interface", get_canvas_interface());
            action->set_param(
                "value_desc",
                ValueDesc(
                    bone_node,
                    bone_node->get_link_index_from_name("origin"),
                    ValueDesc(pair_node, pair_node->get_link_index_from_name("first"))));
            action->set_param("time", time);
            add_action_front(action);
        }
    }
}